Cosmetic composition comprising at least one anionic surfactant, at least one cationic polymer and at least one amphiphilic, branched block acrylic copolymer and method for treating hair using such a composition

ABSTRACT

A cosmetic composition comprising, in a cosmetically acceptable medium,  
     at least one amphiphilic polymer chosen from branched block copolymers comprising  
     (a) at least one nonionic unit derived from at least one monomer chosen from C 1-20  alkyl (meth)acrylates, N-mono-(C 2-12  alkyl)-(meth)acrylamides and N,N-di-(C 2-12  alkyl)-(meth)acrylamides,  
     (b) at least one anionic unit derived from at least one monomer chosen from acrylic acid and methacrylic acid, and  
     (c) at least one polyfunctional unit derived from at least one monomer comprising at least two polymerizable unsaturated functional groups,  
     at least one cationic polymer, and  
     at least 3% by weight, relative to the total weight of the composition, of at least one anionic surfactant, and a method for treating a keratinous material using the composition.

[0001] This application claims benefit of U.S. Provisional ApplicationNo. 60/394,719, filed Jul. 10, 2002.

[0002] Disclosed herein is a cosmetic composition comprising at leastone anionic surfactant, at least one amphiphilic polymer chosen frombranched block acrylic copolymers, and at least one conditioning agentchosen from cationic polymers. Further disclosed herein is a method fortreating hair using such a composition.

[0003] Although a very large number of fixing polymers are known in thefield of hair-styling, most of them may have, for example, a limitedfixing power when they are used in rinse-out hair compositions such asshampoos or conditioners.

[0004] The very advantageous hair-styling properties of a group ofamphiphilic, branched, block acrylic copolymers which have a structurewherein blocks of relatively hydrophilic acrylic monomers are attachedto a block of acrylic monomers which is relatively more hydrophobic thanthe blocks which it carries have been recently discovered. These novelamphiphilic, branched, block copolymers are described in InternationalPatent Application Nos. WO 00/40628 and WO 01/96429.

[0005] International Patent Application Nos. WO 00/40628 and WO 01/96429describe the structure of these novel polymers and a method forpreparing them and their use in the hair-styling field in the form ofleave-in hair-styling compositions such as hair-styling lacquers andmousses in the form of aerosol compositions comprising organic solventsand propelling agents.

[0006] The inventor has discovered that the amphiphilic, branched, blockacrylic copolymers disclosed in the above-mentioned International patentapplications could also be used in rinse-out compositions if they werecombined with at least one cationic polymer and with at least oneanionic surfactant.

[0007] Indeed, the introduction, into at least one anionic surfactantbase, of the combination of at least one cationic polymer and at leastone amphiphilic polymer chosen from branched, block copolymers asdescribed below can give rise to shampoos which have excellenthair-styling properties and which can confer good cosmetic properties onthe hair, for example, sleekness and gloss.

[0008] The good results obtained with the combination of the polymersdisclosed herein were not predictable because the use of cationicpolymers in combination with anionic polymers in a surfactant base toprovide a hair-styling effect has, up until now, not allowedsatisfactory cosmetic properties to be obtained, for example, hairsleekness and gloss.

[0009] The compositions disclosed herein may also, for example, be usedon the skin. They then make it possible to obtain very good conditioningproperties.

[0010] Disclosed herein is a cosmetic composition comprising, in acosmetically acceptable medium,

[0011] at least one amphiphilic polymer chosen from branched blockcopolymers comprising:

[0012] (a) at least one nonionic unit derived from at least one monomerchosen from C₁-C₂₀ alkyl (meth)acrylates, N-mono-(C₂-C₁₂alkyl)-(meth)acrylamides and N,N-di-(C₂-C₁₂ alkyl)-(meth)acrylamides,

[0013] (b) at least one anionic unit derived from at least one monomerchosen from acrylic acid and methacrylic acid, and

[0014] (c) at least one polyfunctional unit derived from at least onemonomer comprising at least two polymerizable unsaturated functionalgroups,

[0015] and, for example, having a structure comprising at least onehydrophilic block, attached to at least one hydrophobic block, via theat least one polyfunctional unit (c),

[0016] at least one cationic polymer, and

[0017] at least 3% by weight, relative to the total weight of thecomposition, of at least one anionic surfactant.

[0018] Also disclosed herein is a method for treating a keratinousmaterial comprising applying to the keratinous material the compositiondisclosed herein and, after an optional exposure time, rinsing thekeratinous material.

[0019] The exposure time for the composition may range, for example,from 0 seconds to 30 minutes.

[0020] The at least one amphiphilic polymer chosen from branched blockcopolymers disclosed herein and its preparation are disclosed inInternational Patent Application Nos. WO 00/40628 and WO 01/96429, whichare incorporated herein by reference.

[0021] The at least one amphiphilic polymer may comprise, for example, amacromolecular structure wherein at least one relatively hydrophilicsequence, comprising at least one anionic monomer, is attached via theat least one polyfunctional unit (for example at least one unitcomprising at least two polymerizable carbon-carbon double bonds) to atleast one relatively more hydrophobic block.

[0022] The at least one amphiphilic polymer is obtained by a method ofpolymerization in two stages: in a first stage, monomers or a mixture ofmonomers, which are relatively hydrophobic, are polymerized in thepresence of at least one polyfunctional comonomer comprising at leasttwo polymerizable functional groups having different reactivities. Inthis first stage, the hydrophobic monomers polymerize by reacting withthe most reactive functional group of the at least one polyfunctionalcomonomer so as to form a copolymer chain comprising a certain number ofpolymerizable groups corresponding to less reactive groups of the atleast one polyfunctional comonomer. In a second stage, the copolymerchain comprising the polymerizable groups, which is obtained in thefirst stage, is reacted with monomers or a mixture of monomers, whichare relatively more hydrophilic, of which a certain fraction comprisescarboxylic acid groups. These relatively more hydrophilic monomerspolymerize by reacting with the polymerizable groups of the hydrophobiccopolymer chain so as to form relatively more hydrophilic blocks,attached in the form of branches to this first copolymer chain.

[0023] As explained in International Patent Application Nos. WO 00/40628and WO 01/96429, the sequences forming these branched acrylic copolymersdo not only differ in their more or less hydrophobic character, but alsoin their glass transition temperatures. Indeed, the relatively morehydrophilic sequences are so-called “hard” sequences because they have aglass transition temperature greater than room temperature (definedherein as 20° C.), whereas the relatively more hydrophobic sequences areso-called “soft” sequences because they have a glass transitiontemperature which is well below room temperature.

[0024] The block character of the at least one amphiphilic polymer usedherein consequently manifests itself by the existence of at least twoglass transition temperatures (Tg), at least one Tg being greater and atleast one other Tg being less than room temperature (20° C.).

[0025] The relatively more hydrophobic blocks of the at least oneamphiphilic polymer may have, for example, a weight-average molecularmass ranging from 10 000 to 100 000, and the relatively more hydrophilicblocks of the at least one amphiphilic polymer may have a weight-averagemolecular mass, for example, ranging from 1000 to 100 000.

[0026] Each of the monomers forming the at least one polyfunctional unit(c), for example, comprises at least two polymerizable functional groupswhich have a different reactivity from each other. This difference inreactivity makes it possible to polymerize, in a first instance, onlythe most reactive functional groups and to preserve the less reactivefunctional groups which will serve, in a second instance, for theattachment of the relatively more hydrophilic sequence.

[0027] For example, the at least two polymerizable functional groups maybe chosen, for example, from, vinyl, allyl, acryloyl and methacryloylgroups, the latter two having a considerably higher reactivity than theformer.

[0028] For example, the at least one polyfunctional unit (c) may bederived, for example, from at least one monomer of the followingformula:

[0029] wherein

[0030] n and m, which may be identical or different, each range from 1to 4,

[0031] the sum m+n is greater than or equal to 2,

[0032] R₁ and R₃, which may be identical or different, are each chosenfrom a hydrogen atom, and C₁-C₂₂ alkyl groups, for example, C₁-C₃ alkylgroups,

[0033] R₂ is chosen from C₁-C₂₂ alkylene groups, C₃-C₆ cycloalkylenegroups, C₆-C₁₈ arylene groups, C₇-C₂₄ alkylarylene groups,—(CH₂—CH₂—O)_(p) groups wherein p ranges from 1 to 50,(CH₂(CH₃)—CH₂—O)_(p) groups wherein p ranges from 1 and 50, amidogroups, ester groups, polyamido groups, and polyester groups.

[0034] For example, the at least one polyfunctional unit (c) may bederived from at least one monomer chosen from allyl methacrylate, allylacrylate, vinyl methacrylate, vinyl acrylate, vinylacrylamide,vinylmethacrylamide, allylmethacrylamide, allylacrylamide. In oneembodiment, the at least one polyfunctional unit (c) is derived fromallyl methacrylate.

[0035] In one embodiment, the at least one amphiphilic polymer consistsessentially of the units (a), (b) and (c) as described above.

[0036] The proportions of the units (a), (b) and (c) in the at least oneamphiphilic polymer are, for example:

[0037] (a) at least one anionic unit: ranging from 5 to 95 mol %, forexample, from 5 to 50 mol %,

[0038] (b) at least one nonionic unit: ranging from 5 to 70 mol %, forexample, from 10 to 70 mol %,

[0039] (c) at least one polyfunctional unit: ranging from 0.005 to 2 mol%, for example, from 0.1 to 1.5 mol %.

[0040] In one embodiment, the at least one amphiphilic polymer consistsessentially of:

[0041] (a) nonionic units derived from butyl acrylate,

[0042] (b) anionic units derived from methacrylic acid and acrylic acid,and

[0043] (c) bifunctional units derived from allyl methacrylate,

[0044] and, wherein, for example, the at least one amphiphilic polymercomprises from 27.5 to 30.5 mol % of butyl acrylate, from 26 to 36 mol %of acrylic acid, from 33.3 to 45.3 mol % of methacrylic acid and from0.48 to 0.92 mol % of allyl methacrylate.

[0045] For example, the copolymer FIXATE® G100 by the company NOVEON maybe used.

[0046] The compositions disclosed herein may, for example, comprise from0.01 to 10% by weight, for example, from 0.1 to 5% by weight, relativeto the total weight of the composition, of the at least one amphiphilicpolymer.

[0047] The composition disclosed herein further comprises, in additionto the at least one amphiphilic polymer described above, at least onecationic polymer.

[0048] The expression “at least one cationic polymer” means any polymer.comprising cationic groups and/or groups which can be ionized intocationic groups.

[0049] The at least one cationic polymer is chosen from all thosealready known per se for their capacity to improve the cosmeticproperties of hair treated with detergent compositions. For example,those described in patent applications EP 0 337 354, FR 2 270 846, FR 2383 660, FR 2 598 611, FR 2 470 596 and FR 2 519 863 may be used.

[0050] For example, the at least one cationic polymer can be chosen fromthose comprising units comprising at least one amine group chosen fromprimary, secondary, tertiary and quaternary amine groups which mayeither form part of the principal polymer chain, or which may be carriedby a side functional group directly linked to the principal polymerchain.

[0051] The at least one cationic polymer may be chosen, for example,from polymers of the polyamine, polyaminoamide and poly(quaternaryammonium) type. These polymers are known in the art.

[0052] The polymers of the polyamine, polyaminoamide and poly(quaternaryammonium) type, which can be used in the composition disclosed herein,are those described in French Patent Nos. 2 505 348 and 2 542 997. Forexample, these polymers can be chosen from the following families ofpolymers:

[0053] (1) The homopolymers and copolymers derived from acrylic andmethacrylic esters and amides and comprising at least one unit chosenfrom units of the following formulae:

[0054] wherein:

[0055] R₃, which may be identical or different, is chosen from ahydrogen atom and a CH₃ radical;

[0056] A, which may be identical or different, is chosen from linear andbranched alkyl groups comprising from 1 to 6 carbon atoms, for example,2 or 3 carbon atoms and hydroxyalkyl groups comprising from 1 to 4carbon atoms;

[0057] R₄, R₅, R₆, which may be identical or different, are each chosenfrom alkyl groups comprising from 1 to 18 carbon atoms, for example,alkyl groups comprising from 1 to 6 carbon atoms, and benzyl radicals;

[0058] R₁ and R₂, which may be identical or different, are each chosenfrom a hydrogen atom and alkyl groups comprising from 1 to 6 carbonatoms, for example, methyl and ethyl groups;

[0059] X⁻ is an anion chosen from anions derived from inorganic andorganic acids such as a methosulphate anion and halides such as chlorideand bromide.

[0060] The copolymers of the family (1) may further comprise at leastone unit derived from comonomers which may be chosen from acrylamides,methacrylamides, diacetone acrylamides, acrylamides and methacrylamidessubstituted on the nitrogen with at least one group chosen from lower(C₁-C₄)alkyls groups, groups derived from acrylic acids, methacrylicacids, acrylic esters, methacrylic esters and vinyllactam groups such asvinylpyrrolidone and vinylcaprolactam, and vinyl esters.

[0061] Thus, the copolymers of the family (1) may be chosen, forexample, from:

[0062] the copolymers of acrylamide and dimethylaminoethyl methacrylatequaternized with dimethyl sulphate or with a dimethyl halide such asthat sold under the name HERCOFLOC® by the company HERCULES,

[0063] the copolymers of acrylamide andmethacryloyloxyethyltrimethylammonium chloride described, for example,in Patent Application EP A 080976 and sold under the name BINAQUAT® P100 by the company CIBA GEIGY,

[0064] the copolymer of acrylamide andmethacryloyloxyethyltrimethylammonium methosulphate sold under the nameRETEN® by the company HERCULES,

[0065] the quaternized and nonquaternizedvinylpyrrolidone/dialkylaminoalkyl acrylate or methacrylate copolymers,such as the products sold under the name GAFQUAT® by the company ISP,for example, GAFQUAT® 734 or GAFQUAT® 755 and the products calledCOPOLYMER 845, 958 and 937. These polymers are described in detail inFrench Patent Nos. 2,077,143 and 2,393,573,

[0066] the dimethylaminoethylmethacrylate/vinyl-caprolactam/vinylpyrrolidone terpolymers such as theproduct sold under the name GAFFIX® VC 713 by the company ISP,

[0067] the vinylpyrrolidone/methacrylamidopropyidimethylamine copolymersmarketed, for example, under the name STYLEZE® CC 10 by ISP, and

[0068] the quaternized vinylpyrrolidone/dimethylaminopropylmethacrylamide copolymers such as the product sold under the nameGAFQUAT® HS 100 by the company ISP.

[0069] (2) The cellulose ether derivatives comprising quaternaryammonium groups, described in French Patent No.1 492 597, for example,the polymers marketed under the names JR (JR 400, JR 125, JR 30M) and LR(LR 400, LR 30M) by the company AMERCHOL. These polymers are alsodefined in the CTFA dictionary as hydroxyethyl cellulose quaternaryammoniums which have reacted with an epoxide substituted by atrimethylammonium group.

[0070] (3) The cationic cellulose derivatives such as cellulosecopolymers and cellulose derivatives grafted with a quaternary ammoniumwater-soluble monomer, and described, for example, in U.S. Pat. No.4,131,576, such as hydroxyalkyl celluloses such as hydroxymethyl,hydroxyethyl and hydroxypropyl celluloses grafted, for example, with asalt chosen from methacryloylethyltri methylammonium, methacrylamidopropyltri methyl-ammonium and dimethyidiallylammonium salts. Themarketed products corresponding to this definition are, for example, theproducts sold under the name Celquat® L 200 and Celquat® H 100 by thecompany National Starch.

[0071] (4) The cationic polysaccharides described, for example, in U.S.Pat. Nos. 3,589,578 and 4,031,307 such as guar gums comprising cationictrialkylammonium groups. Guar gums modified with a2,3-epoxypropyltrimethylammonium salt (e.g. chloride) are, for example,used. Such products are marketed, for example, under the trade namesJAGUAR® C13 S, JAGUAR® C 15, JAGUAR® C 17 or JAGUAR® C162 by the companyRHODIA.

[0072] (5) Polymers comprising piperazinyl units and divalent groupschosen from alkylene and hydroxyalkylene divalent groups with straightand branched chains, optionally interrupted by at least one entitychosen from oxygen, sulphur and nitrogen atoms and aromatic andheterocyclic rings, and the oxidation and quaternization products ofthese polymers. Such polymers are described, for example, in FrenchPatent Nos. 2,162,025 and 2,280,361.

[0073] (6) Water-soluble polyaminoamides prepared, for example, bypolycondensation of an acid compound with a polyamine; thesepolyaminoamides may be crosslinked with at least one entity chosen fromepihalohydrins, diepoxides, dianhydrides, unsaturated dianhydrides,diunsaturated derivatives, bishalohydrins, bisazetidiniums,bishaloacyldiamines, alkylbishalides, and oligomers resulting from thereaction of a difunctional compound which is reactive towards abishalohydrin, a bisazetidinium, a bishaloacyldiamine, analkylbishalide, an epihalohydrin, a diepoxide or a diunsaturatedderivative. The crosslinking agent can be employed in proportionsranging from 0.025 to 0.35 mol per amine group of the polyaminoamide.These polyaminoamides may be alkylated or, if they comprise at least onetertiary amine functional group, they can be quaternized. Such polymersare described, for example, in French Patent Nos. 2,252,840 and2,368,508.

[0074] (7) Polyaminoamide derivatives resulting from the condensation ofpolyalkylenepolyamines with polycarboxylic acids, followed by analkylation with difunctional agents. For example, the polyaminoamidederivatives are chosen from adipicacid/dialkylaminohydroxyalkyldialkylenetriamine polymers wherein thealkyl group comprises from 1 to 4 carbon atoms and, for example, ischosen from methyl, ethyl and propyl groups and alkylene groupscomprising from 1 to 4 carbon atoms, for example, an ethylene group.Such polymers are described, for example, in French Patent No.1,583,363. Further, for example, the polyaminoamide derivatives may bechosen, for example, from the adipicacid/dimethylaminohydroxypropyl-diethylenetriamine polymers sold underthe name Cartaretine® F, F4 and F8 by the company Sandoz.

[0075] (8) Polymers obtained by reaction of a polyalkylenepolyaminecomprising two primary amine groups and at least one secondary aminegroup with a dicarboxylic acid chosen from diglycolic acids andsaturated aliphatic dicarboxylic acids comprising from 3 to 8 carbonatoms. The molar ratio of the polyalkylenepolyamine to the dicarboxylicacid may range, for example, from 0.8:1 to 1.4:1. The polyaminoamideresulting therefrom may then be made to react with epichlorohydrin in amolar ratio of epichlorohydrin relative to the secondary amine group ofthe polyaminoamide ranging from 0.5:1 to 1.8:1. Such polymers aredescribed, for example, in U.S. Pat. Nos. 3,227,615 and 2,961,347. Othernon-limiting examples of such polymers include the adipicacid/epoxypropyl-diethylene-triamine copolymers marketed, for example,under the name Hercosett® 57 by the company Hercules Inc. and under thename of PD 170 or Delsette® 101 by the company Hercules.

[0076] (9) Cyclopolymers of alkyldiallylamine or ofdialkyldiallylammonium, such as the homopolymers or copolymerscomprising, as main constituent of the chain, at least one unit chosenfrom units corresponding to the formulae (Va) and (Vb):

[0077] wherein

[0078] k and t are equal to 0 or 1, the sum k+t being equal to 1;

[0079] R₁₂ is chosen from a hydrogen atom and a methyl group;

[0080] R₁₀ and R₁₁, which may be identical or different, are each chosenfrom alkyl groups comprising from 1 to 22 carbon atoms, C₁₋₅hydroxyalkyl groups, and lower (C₁-C₄)-amidoalkyl groups or R₁₀ and R₁₁may form, together with the nitrogen atom to which they are attached, aheterocyclic group such as piperidinyl and morpholinyl groups; and

[0081] Y⁻ is an anion chosen from bromide, chloride, acetate, borate,citrate, tartrate, bisulphate, bisulphite, sulphate and phosphateanions.

[0082] These polymers are described, for example, in French Patent No.2,080,759 and in its Certificate of Addition 2,190,406.

[0083] For example, the cyclopolymers of alkyldiallylamine or ofdialkyl-diallylammonium may be chosen from the dimethyldiallylammoniumchloride homopolymer sold under the name MERQUAT® 100 by the companyNALCO (and its homologues of low weight-average molecular mass) and thecopolymers of diallyl-dimethylammonium chloride and acrylamide marketedunder the name MERQUAT® 550.

[0084] (10) The quaternary diammonium polymers comprising repeat unitscorresponding to the formula (VI):

[0085] wherein:

[0086] R₁₃, R₁₄, R₁₅ and R₁₆, which may be identical or different, areeach chosen from aliphatic, alicyclic and arylaliphatic groupscomprising from 1 to 20 carbon atoms and from lower hydroxyalkylaliphatic groups, or R₁₃, R₁₄, R₁₅ and R₁₆, together or separately,form, together with the nitrogen atoms to which they are attached,heterocycles optionally comprising a second heteroatom other thannitrogen, or R₁₃, R₁₄, R₁₅ and R₁₆ are each chosen from linear andbranched C₁-C₆ alkyl groups substituted by at least one group chosenfrom nitrile, ester, acyl, amide and —CO—O—R₁₇—D and —CO—NH—R₁₇—D groupswherein R₁₇ is chosen from alkylene groups and D is chosen fromquaternary ammonium groups;

[0087] A₁ and B₁, which may be identical or different, are each chosenfrom linear and branched, saturated and unsaturated, polymethylenegroups comprising from 2 to 20 carbon atoms which may comprise, bondedto or inserted into the main chain, at least one entity chosen fromaromatic rings, oxygen and sulphur atoms and sulphoxide, sulphone,disulphide, amino, alkylamino, hydroxyl, quaternary ammonium, ureido,amide and ester groups, and

[0088] X⁻ is an anion chosen from anions derived from inorganic andorganic acids;

[0089] A₁, R₁₃ and R₁₅, may form, together with the two nitrogen atomsto which they are attached, a piperazine ring.

[0090] In addition, if A₁ is a group chosen from saturated andunsaturated, linear and branched alkylene and hydroxyalkylene groups, B₁may also be chosen from the group:

—(CH₂)_(n)—CO—D—OC—(CH₂)_(n)—

[0091] wherein n ranges from 1 to 6, and D is chosen from:

[0092] a) a glycol residue of formula: —O—Z—O—, wherein Z is chosen fromlinear and branched hydrocarbon groups and a group corresponding to oneof the following formulae:

—(CH₂—CH₂—O)_(x)—CH₂—CH₂—

—[CH₂—CH(CH₃)—O]_(y)—CH₂—CH(CH₃)—

[0093] wherein x and y, which may be identical or different, are eachchosen from an integer ranging from 1 to 4, representing a defined andunique degree of polymerization or any number ranging from 1 to 4representing a mean degree of polymerization;

[0094] b) a disecondary diamine residue such as a piperazine derivative;

[0095] c) a diprimary diamine residue of formula: —NH—Y—NH—, where Y ischosen from linear and branched hydrocarbon groups and the divalentgroup —CH₂—CH₂—S—S—CH₂—CH₂—; and

[0096] d) a ureylene group of formula —NH—CO—NH—.

[0097] In one embodiment, X⁻ is an anion such as chloride and bromide.

[0098] These polymers have a number-average molecular mass which mayrange, for example, from 1000 to 100,000.

[0099] These polymers are described, for example, in French Patent Nos.2,320,330, 2,270,846, 2,316,271, 2,336,434 and 2,413,907 and U.S. Pat.Nos. 2,273,780, 2,375,853, 2,388,614, 2,454,547, 3,206,462, 2,261,002,2,271,378, 3,874,870, 4,001,432, 3,929,990, 3,966,904, 4,005,193,4,025,617, 4,025,627, 4,025,653, 4,026,945 and 4,027,020.

[0100] Further, the polymers that comprise repeating units correspondingto the formula (VII) below can be used:

[0101] wherein R₁, R₂, R₃ and R₄, which may be identical or different,are each chosen from alkyl and hydroxyalkyl groups comprising from 1 to4 carbon atoms, n and p, which may be identical or different, are eachan integer ranging from 2 to 20 and X⁻ is an anion chosen from anionsderived from inorganic and organic acids.

[0102] For example, one compound of formula (VII) can be used in thecomposition disclosed herein, wherein R₁, R₂, R₃ and R₄ are each amethyl group and n=3, p=6 and X=Cl, called hexadimethrine chloride(CTFA).

[0103] (11) Poly(quaternary ammonium) polymers comprising units offormula (VIII):

[0104] wherein:

[0105] R₁₈, R₁₉, R₂₀ and R₂₁, which may be identical or different, areeach chosen from a hydrogen atom and methyl, ethyl, propyl,β-hydroxyethyl, β-hydroxypropyl and —CH₂CH₂(OCH₂CH₂)_(p)OH groups,wherein p is equal to 0 or to an integer ranging from 1 to 6, providedthat R₁₈, R₁₉, R₂₀ and R₂₁ do not simultaneously denote a hydrogen atom,

[0106] r and s, which may be identical or different, are each an integerranging from 1 to 6,

[0107] q is equal to 0 or to an integer ranging from 1 to 34,

[0108] X⁻ is an anion such as a halide,

[0109] A is chosen from divalent radicals, for example,—CH₂—CH₂—O—CH₂—CH₂—.

[0110] Such polymers are described, for example, in European PatentApplication EP A-122 324.

[0111] The poly(quaternary ammonium) polymers comprising units offormula (VIII) may be chosen, for example, from the products Mirapol® A15, Mirapol® AD1, Mirapol® AZ1 and Mirapol® 175, sold by the companyMiranol.

[0112] (12) Quaternary vinylpyrrolidone and vinylimidazole polymers suchas the products marketed under the names Luviquat® FC 905, FC 550 and FC370 by the company B.A.S.F. For example, the quaternary vinylpyrrolidoneand vinylimidazole polymers may be chosen from vinylpyrrolidone andmethylvinylimidazolium chloride copolymers.

[0113] (13) Polyamines such as the Polyquart H® sold by Cognis, underthe name of “Polyethylene glycol (15) Tallow Polyamine” in the CTFAdictionary.

[0114] (14) Polymers, which may be crosslinked, of methacryloyloxy(C₁-C₄alkyl)tri(C₁-C₄ alkyl)ammonium salts such as the polymers obtained byhomopolymerization of dimethylaminoethyl methacrylate quaternized withmethyl chloride, or by copolymerization of acrylamide and ofdimethylaminoethyl methacrylate quaternized with methyl chloride, thehomo- or copolymerization being followed by crosslinking with a compoundcomprising olefinic unsaturation, for example, methylenebisacrylamide.For example, it is possible to employ a crosslinkedacrylamide/methacryloyloxyethyltrimethylammonium chloride copolymer(20/80 by weight) in the form of a dispersion comprising 50% by weightof the said copolymer in mineral oil. This dispersion is marketed underthe name of SALCARE® SC 92 by the company CIBA. It is also possible toemploy a crosslinked methacryloyloxy-ethyltrimethylammonium chloridehomopolymer comprising approximately 50% by weight of the homopolymer inmineral oil or in a liquid ester. These dispersions are marketed underthe names of SALCARE® SC 95 and SALCARE® SC 96 by the company CIBA.

[0115] The at least one cationic polymer that may be employed in thecomposition disclosed herein can be chosen, for example, from cationicproteins and hydrolysates of cationic proteins, polyalkyleneimines, suchas polyethyleneimines, polymers comprising vinylpyridine andvinylpyridinium units, condensates of polyamines and of epichlorohydrin,quaternary polyureylenes and cationic chitin derivatives.

[0116] Additional non-limiting examples of the at least one cationicpolymer include cellulose ether derivatives comprising quaternaryammonium groups such as the products sold under the name JR 400 by thecompany AMERCHOL, cationic cyclopolymers, for example, the homopolymersand copolymers of dimethyidiallylammonium chloride, sold under the namesMERQUAT® 100, MERQUAT® 550 and MERQUAT® S by the company NALCO, cationicpolysaccharides such as guar gums modified by a salt of2,3-epoxypropyltrimethylammonium, quaternized copolymers ofvinylpyrrolidone and vinylimidazole, polyquaternary ammoniumpolycondensates, for example, comprising the repeat units of formulae(VI) and (VIII) as indicated above, and mixtures thereof.

[0117] Even further, for example, the quaternized copolymers ofvinylpyrrolidone and vinylimidazole may be used.

[0118] The concentration of the at least one cationic copolymer in thecomposition disclosed herein ranges, for example, from 0.001% to 10% byweight, further for example, from 0.05 to 5% by weight, and evenfurther, for example, from 0.05 to 1% by weight, relative to the totalweight of the composition.

[0119] The at least one anionic surfactant which can be used in thecomposition disclosed herein may, for example, be chosen from salts, forexample, the alkali metal salts such as the sodium salts, the ammoniumsalts, the amine salts, the amino alcohol salts and the salts ofalkaline-earth metals, for example salts of magnesium, of the followingtypes: alkyl sulphates, alkyl ether sulphates, alkyl amidoethersulphates, alkyl aryl polyether sulphates, monoglyceride sulphates;alkyl sulphonates, alkyl amide sulphonates, alkyl aryl sulphonates,α-olefin sulphonates, paraffin sulphonates, alkyl sulphosuccinates,alkyl ether sulphosuccinates, alkyl amide sulphosuccinates, alkylsulphoacetates, acyl sarcosinates and acyl glutamates, and the alkyl andacyl groups of all these compounds comprising from 6 to 24 carbon atoms,and aryl groups, such as phenyl and benzyl groups.

[0120] The at least one anionic surfactant may also be chosen, forexample, from monoesters of C₆₋₂₄ alkyl and of polyglycosidedicarboxylic acids such as alkyl glucoside citrates, alkyl polyglycosidetartrates and alkyl polyglycoside sulphosuccinates, alkylsulphosuccinamates, acyl isethionates and N-acyltaurates, and the alkyland acyl groups of all these compounds comprising from 12 to 20 carbonatoms.

[0121] Surfactants of acyl lactylates wherein the acyl group comprisesfrom 8 to 20 carbon atoms can also be used.

[0122] In addition, the at least one anionic surfactant can be chosenfrom alkyl-D-galactosideuronic acids and their salts andpolyoxyalkylenated (C₆-C₂₄)alkyl ether carboxylic acids,polyoxyalkylenated (C₆-C₂₄)alkyl (C₆-C₂₄)aryl ether carboxylic acids,polyoxyalkylenated (C₆-C₂₄)alkyl amidoether carboxylic acids and theirsalts, for example, those comprising from 2 to 50 ethylene oxide units.

[0123] Further, for example, the at least one anionic surfactant chosenfrom alkyl sulphates, alkyl ether sulphates and alkyl ethercarboxylates, for example, in the form of alkali and alkaline-earthmetal, ammonium, amine and amino alcohol salts can be used.

[0124] It may be possible to introduce into the composition disclosedherein at least one additional surfactant chosen from amphoteric andnonionic surfactants.

[0125] The amphoteric surfactants which can be used in the compositiondisclosed herein may, for example, be chosen from secondary and tertiaryaliphatic amine derivatives wherein the aliphatic group is chosen fromlinear and branched chains comprising from 8 to 22 carbon atoms andcomprising at least one anionic group chosen from, for example,carboxylate, sulphonate, sulphate, phosphate and phosphonate groups. Theamphoteric surfactants may be chosen, further, for example, from(C₈-C₂₀)alkylbetaines, sulphobetaines,(C₈-C₂₀)alkylamido-(C₂-C₈)alkylbetaines and(C₈-C₂₀)alkylamido(C₂-C₈)alkyl-sulphobetaines.

[0126] Among the amine derivatives, the products marketed under the nameMIRANOL®, as described in the U.S. Pat. Nos. 2,528,378 and 2,781,354 andclassified in the CTFA dictionary, 3^(rd) edition, 1982, under the namesamphocarboxy-glycinate and amphocarboxypropionate having the respectivestructures (1) and (2) may be used:

R_(a)—CONHCH₂CH₂—N(R_(b))(R_(c))(CH₂COO⁻)  (1)

[0127] wherein:

[0128] R_(a) is chosen from alkyl groups derived from an acid R_(a)—OOHpresent in hydrolysed copra oil, a heptyl, nonyl and undecyl group,

[0129] R_(b) is a beta-hydroxyethyl group, and

[0130] R_(c) is a carboxymethyl group; and

R_(a)′—CONHCH₂CH₂—N(B)(C)  (2)

[0131] wherein:

[0132] B is chosen from —CH₂CH₂OX′ groups,

[0133] C is chosen from —(CH₂)_(z)—Y′ groups, wherein z=1 or 2,

[0134] X′ is chosen from the group —CH₂CH₂—COOH and a hydrogen atom,

[0135] Y′ is chosen from —COOH and the group —CH₂—CHOH—SO₃H,

[0136] R_(a)′ is chosen from alkyl groups of an acid R_(a)′—COOH presentin copra oil and in hydrolysed linseed oil, alkyl groups, such as a C₁₇alkylgroup and its iso form, and an unsaturated C₁₇ group.

[0137] These compounds are classified in the CTFA dictionary, 5^(th)edition, 1993, under the names disodium cocoamphodiacetate, disodiumlauroamphodiacetate, disodium caprylamphodiacetate, disodiumcapryloamphodiacetate, disodium cocoamphodipropionate, disodiumlauroamphodipropionate, disodium caprylamphodipropionate, disodiumcaprylamphodipropionate, lauroamphodipropionic acid, andcocoamphodipropionic acid.

[0138] For example, the cocoamphodiacetate marketed by the companyRHODIA under the trade name MIRANOL® C2M concentrate may be used.

[0139] Among the amphoteric surfactants, (C₈-C₂₀ alkyl)betaines,(C₈-C₂₀alkyl)amido(C₆-C₈ alkyl)betaines, alkylamphodiacetates and mixturesthereof may, for example, be used.

[0140] The nonionic surfactants which can be used in the compositiondisclosed herein are compounds well known per se (see, for example,“Handbook of Surfactants” by M. R. PORTER, Blackie & Son publishing(Glasgow and London), 1991, pp 116-178). They are chosen, for example,from alcohols, alpha-diols, (C₁₋₂₀)alkylphenols and polyethoxylated,polypropoxylated and polyglycerolated fatty acids comprising a fattychain comprising, for example, from 8 to 18 carbon atoms, it beingpossible for the number of ethylene oxide and propylene oxide groups torange, for example, from 2 to 50 and the number of glycerol groups torange, for example, from 2 to 30.

[0141] The non-ionic surfactants may also be chosen, for example, fromcopolymers of ethylene and propylene oxide, condensates of ethylene andpropylene oxide with fatty alcohols; polyethoxylated fatty amides, forexample, comprising from 2 to 30 ethylene oxide units, polyglycerolatedfatty amides comprising on average from 1 to 5 glycerol groups and, forexample, from 1.5 to 4, ethoxylated sorbitan fatty acid esterscomprising from 2 to 30 ethylene oxide units, sucrose fatty acid esters,polyethylene glycol fatty acid esters, C₆-C₂₄ alkyl polyglycosides,N—(C₆-C₂₄ alkyl)glucamine derivatives, amine oxides such as (C₁₀-C₁₄alkyl)amine oxides and N—(C₁₀-C₁₄ acyl)-aminopropylmorpholine oxides.

[0142] In one embodiment, among the nonionic surfactants cited above,C₆-C₂₄ alkyl polyglycosides are used.

[0143] As indicated above, the quantity of the at least one anionicsurfactant is at least equal to 3% by weight, relative to the totalweight of the composition. For example, the quantity of the at least oneanionic surfactant may range from 5% to 35% by weight, and further, forexample, from 8% to 25% by weight, relative to the total weight of thecomposition.

[0144] The total quantity of the at least one additional surfactant,when they are present, ranges, for example, from 0.5 to 30%, and,further for example, from 1 to 20% by weight, relative to the totalweight of the composition.

[0145] The cosmetically acceptable aqueous medium may comprise water ora mixture of water and at least one cosmetically acceptable solvent suchas C₁-C₄ lower alcohols, for example, ethanol, isopropanol, tert-butanoland n-butanol, alkylene glycols such as propylene glycol, polyol ethers,C₅-C₁₀ alkanes, acetone, methyl ethyl ketone, C₁-C₄ alkyl acetates suchas methyl acetate, ethyl acetate and butyl acetate, dimethoxyethane anddiethoxyethane.

[0146] The pH of the composition disclosed herein may range, forexample, from 3 to 8, such as from 4 to 7.

[0147] The composition disclosed herein may also comprise at least oneformulation additive chosen from associative and nonassociative,anionic, amphoteric, zwitterionic, nonionic and cationic, natural andsynthetic, polymeric thickeners, nonpolymeric thickeners such as acidsand electrolytes, pearlescent agents, opacifying agents, perfumes,mineral, vegetable oils and synthetic oils, fatty acid esters, volatilesilicones, nonvolatile silicones, organomodified silicones, andnon-organomodified silicones, colorants, preservatives andpH-stabilizing agents.

[0148] Persons skilled in the art will be careful to choose the at leastone formulation additive and its quantity so that they do not damage theadvantageous properties of the composition disclosed herein.

[0149] The at least one formulation additive may be present in thecomposition disclosed herein in a total quantity ranging from 0 to 20%by weight, relative to the total weight of the composition.

[0150] The composition disclosed herein may be in a form chosen fromhomogeneous solutions, suspensions, water-in-oil (W/O) emulsions,oil-in-water (O/W) emulsions and multiple emulsions, all having a fluid,a more or less thick, or a gel consistency.

[0151] For example, the composition disclosed herein may be packaged inthe absence of propellants.

[0152] The composition disclosed herein may be provided in the formchosen from shampoos, bath and shower products, and make-up removingproducts. In one embodiment, the composition disclosed herein is ashampoo.

[0153] The following examples illustrate embodiments disclosed hereinwithout, however, being limiting in nature.

EXAMPLE 1

[0154] The following shampoo composition was prepared: Sodium laurylether sulphate (C₁₂/C₁₄ at 70/30) 10.5 g (a.s.)^(a)) comprising 2.2 molof ethylene oxide (C_(8/16))alkyl polyglycoside (PLANTAREN ® 2000,  4.0g (a.s.) from COGNIS) Oxyethylenated lauryl alcohol (2.5 EO units)  1.0g Copolymer of vinylpyrrolidine and  0.1 g (a.s.) methylvinylimidazoliumchloride (5/95) as a 40% aqueous solution (LUVIQUAT ® FC 905 (BASF))Amphiphilic, branched, block copolymer of butyl  0.2 g (a.s.) acrylate,acrylic acid, methacrylic acid and allyl methacrylate as a 27% by weightaqueous solution (FIXATE ® G100 (NOVEON)) Crosslinked polyacrylic acid 0.2 g Distearyl ether  1.5 g Mixture of fatty alcohols comprising 76%of behenyl  1.5 g alcohol (NAFOL ® 1822 C (company CONDEA)) Citric acidq.s. pH 5 Sodium chloride  1.5 g Perfume, preservatives q.s.Demineralized water q.s. 100 g

[0155] This shampoo has good hair-styling properties (body, retention)and cosmetic properties, for example, sleekness and gloss.

EXAMPLES 2 and 3

[0156] The following shampoo compositions were prepared: CompositionExample 2 Example 3 Sodium lauryl ether sulphate (C12/C14 at 70/30)  14g A.S.  10 g A.S. comprising 2.2 mol of ethylene oxide Sodium/magnesiumlauryl ether sulphate (80/20) — 3.1 g A.S. comprising 4 mol of ethyleneoxide Cocoamidopropylbetaine 2.4 g A.S. — Sodium cocoamidoethyl(N-hydroxyethyl, N- — 4.5 g A.S. carboxymethyl) glycinate, sold underthe name Miranol C2M by the company RHODIA Hydroxypropylguartrimethylammonium chloride, — 0.25 g sold under the name Jaguar C-162 bythe company RHODIA Hydroxyethylcellulose crosslinked with 0.4 g —epichlorohydrin, quaternized with trimethylamine, sold under the name JR400 by the company AMERCHOL Branched block butyl acrylate/acrylic 3.75g  3.75 g acid/methacrylic acid polymer as an aqueous solutioncomprising 27% A.S. provided under the name FIXATE G100 by the companyNOVEON Polydimethylsiloxane having a viscosity of 1.5 g — 500 000 cst,sold under the name MIRASIL DM 500 000 by the company RHODIA Crosslinkedpolyacrylic acid 0.2 g  0.1 g Monoisopropanolamide of copra acids 1.2 g 0.2 g Behenyl alcohol 1.5 g — Distearyl ether 1.5 g Ethylene glycoldistearate —   2 g Sodium hydroxide q.s. pH 6.5 Citric acid q.s. — pH 6Perfume, preservatives q.s. q.s. Demineralized water q.s. 100 g   100 g

[0157] These compositions have good hair-styling properties (body,retention) and cosmetic properties, for example, on the criteria ofdisentanglement and gloss.

What is claimed is:
 1. A cosmetic composition comprising, in acosmetically acceptable medium, at least one amphiphilic polymer chosenfrom branched block copolymers comprising (a) at least one nonionic unitderived from at least one monomer chosen from C₁-C₂₀ alkyl(meth)acrylates, N-mono-(C₂-C₁₂ alkyl)-(meth)acrylamides andN,N-di-(C₂-C₁₂ alkyl)-(meth)acrylamides, (b) at least one anionic unitderived from at least one monomer chosen from acrylic acid andmethacrylic acid, and (c) at least one polyfunctional unit derived fromat least one monomer comprising at least two polymerizable unsaturatedfunctional groups, at least one cationic polymer, and at least 3% byweight, relative to the total weight of the composition, of at least oneanionic surfactant.
 2. The composition according to claim 1, wherein theat least one amphiphilic polymer has a structure comprising at least onehydrophilic block attached to at least one hydrophobic block, via the atleast one polyfunctional unit (c).
 3. The composition according to claim1, wherein the at least one amphiphilic polymer has at least two glasstransition temperatures (Tg) of which at least one is greater than roomtemperature (20° C.) and the other is less than room temperature.
 4. Thecomposition according to claim 1, wherein the at least one amphiphilicpolymer is an anionic copolymer consisting essentially of (a) nonionicunits derived from butyl acrylate, (b) anionic units derived frommethacrylic acid and acrylic acid, and (c) polyfunctional units derivedfrom allyl methacrylate.
 5. The composition according to claim 4,wherein the at least one amphiphilic polymer is an anionic copolymerconsisting essentially of (a) from 27.5 to 30.5 mol % of butyl acrylate,(b) from 26 to 36 mol % of acrylic acid and from 33.3 to 45.3 mol % ofmethacrylic acid, and (c) from 0.48 to 0.92 mol % of allyl methacrylate.6. The composition according to claim 1, wherein the concentration ofthe at least one amphiphilic polymer ranges from 0.01 % to 10% byweight, relative to the total weight of the composition.
 7. Thecomposition according to claim 6, wherein the concentration of the atleast one amphiphilic polymer ranges from 0.1 to 5% by weight, relativeto the total weight of the composition.
 8. The composition according toclaim 1, wherein the at least one cationic polymer is chosen fromcellulose ethers comprising quaternary ammonium groups, cationiccyclopolymers based on dimethyldiallylammonium chloride, cationicpolysaccharides, quaternized polymers of vinylpyrrolidone andvinylimidazole and polycondensates of polyquaternary ammonium.
 9. Thecomposition according to claim 8, wherein the cationic polysaccharidesare chosen from guar gums modified with a2,3-epoxypropyltrimethylammonium salt.
 10. The composition according toclaim 1, wherein the at least one cationic polymer is present in anamount ranging from 0.001% to 10% by weight, relative to the totalweight of the composition.
 11. The composition according to claim 10,wherein the at least one cationic polymer is present in an amountranging from 0.05 to 5% by weight, relative to the total weight of thecomposition.
 12. The composition according to claim 11, wherein the atleast one cationic polymer is present in an amount ranging from 0.05 to1% by weight, relative to the total weight of the composition.
 13. Thecomposition according to claim 1, wherein the at least one anionicsurfactant is chosen from alkyl sulphates, alkyl ether sulphates andalkyl ether carboxylates and mixtures thereof.
 14. The compositionaccording to claim 13, wherein the at least one anionic surfactant ischosen from alkali and alkaline-earth metal, ammonium, amine and aminoalcohol salts of alkyl sulphates, alkyl ether sulphates and alkyl ethercarboxylates.
 15. The composition according to claim 1, wherein theconcentration of the at least one anionic surfactant ranges from 5 to35% by weight, relative to the total weight of the composition.
 16. Thecomposition according to claim 15, wherein the concentration of the atleast one anionic surfactant ranges from 8 to 25% by weight, relative tothe total weight of the composition.
 17. The composition according toclaim 1, further comprising at least one additional surfactant chosenfrom nonionic surfactants and amphoteric surfactants.
 18. Thecomposition according to claim 17, wherein the nonionic surfactants arechosen from C₆-C₂₄ alkyl polyglycosides.
 19. The composition accordingto claim 17, wherein the amphoteric surfactants are chosen from (C₈-C₂₀alkyl)betaines, (C₈-C₂₀ alkyl)amido(C₂-C₈ alkyl)betaines,alkylamphodiacetates and mixtures thereof.
 20. The composition accordingto claim 1, further comprising at least one formulation additive chosenfrom associative and nonassociative, anionic, amphoteric, zwitterionic,nonionic and cationic, natural and synthetic, polymeric thickeners,nonpolymeric thickeners, pearlescent agents, opacifying agents,perfumes, mineral, vegetable, and synthetic oils, fatty acid esters,volatile silicones, nonvolatile silicones, organomodified silicones, andnon-organomodified silicones, colorants, preservatives andpH-stabilizing agents.
 21. The composition according to claim 20,wherein the nonpolymeric thickeners are chosen from acids andelectrolytes.
 22. The composition according to claim 1, wherein thecomposition is provided in a form chosen from shampoos, bath and showerproducts, and make-up removing products.
 23. The composition accordingto claim 22, wherein the composition is provided in the form of ashampoo.
 24. A process for treating a keratinous material comprisingapplying to said keratinous material a composition comprising (a) atleast one nonionic unit derived from at least one monomer chosen fromC₁-C₂₀ alkyl (meth)acrylates, N-mono-(C₂-C₁₂ alkyl)-(meth)acrylamidesand N,N-di-(C₂-C₁₂ alkyl)-(meth)acrylamides, (b) at least one anionicunit derived from at least one monomer chosen from acrylic acid andmethacrylic acid, and (c) at least one polyfunctional unit derived fromat least one monomer comprising at least two polymerizable unsaturatedfunctional groups, at least one cationic polymer, and at least 3% byweight, relative to the total weight of the composition, of at least oneanionic surfactant, and, after an optional exposure time, rinsing thekeratinous material.
 25. The process according to claim 24, wherein theat least one amphiphilic polymer has a structure comprising at least onehydrophilic block attached to at least one hydrophobic block, via the atleast one polyfunctional unit (c).
 26. The process according to claim24, wherein the optional exposure time ranges from 0 seconds to 30minutes.